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| Best Seller  | DEMO CMMG Mk4 Resolute Upper Receiver Group 7.62x39mm 16.1in Armor Black 76BFCB4-AB DEMO CMMG Mk4 Resolute Upper Receiver Group 7.62x39mm 16.1in Armor Black 76BFCB4-AB. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute Upper... ... more | FREE shipping go to store |
 | CMMG Mk47 7.62X39mm Resolute Upper Group Receiver 16.1in Charcoal Green 76BFCB4-CG CMMG Mk47 7.62X39mm Resolute Upper Group Receiver 16.1in Charcoal Green 76BFCB4-CG. 62x39mm AR uppers in existence. Due to the increased receiver and component size Mk47 uppers are only designed to work with Mk47 lowers which utilize AK-pattern... ... more | FREE shipping go to store |
| Best Seller  | CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Titanium 99BE6B6-TI CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Titanium 99BE6B6-TI. We have you covered Utilizing our Radial Delayed Blowback operating system not only does this upper create one of the softest shooting 9mm PCCs with style that is unmistakably CMMG... ... more | FREE shipping go to store |
 | CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Charcoal Green 57B40E4-CG CMMG Mk4 5.7X28mm Resolute Upper Group Receiver 16.1in Charcoal Green 57B40E4-CG. 7x28mm have become a big thing in the last few years and if youre looking for PDW ballistics and the classic style and balance of a carbine then youre in luck. Combine... ... more | FREE shipping go to store |
 | CMMG Mk4 Resolute Upper Receiver Group 5.56x45mm NATO 16.1in Armor Black 55BC7C3-AB CMMG Mk4 Resolute Upper Receiver Group 5.56x45mm NATO 16.1in Armor Black 55BC7C3-AB. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute Upper... ... more | FREE shipping go to store |
 | CMMG Mk4 Resolute Upper Receiver Group 6.5mm Grendel 16.1in Armor Black 64BCF88-AB CMMG Mk4 Resolute Upper Receiver Group 6.5mm Grendel 16.1in Armor Black 64BCF88-AB. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute Upper... ... more | FREE shipping go to store |
 | CMMG Mk4 Resolute Upper Receiver Group .350 Legend 16.1in Armor Black 35B5FBC-AB CMMG Mk4 Resolute Upper Receiver Group .350 Legend 16.1in Armor Black 35B5FBC-AB. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute Upper... ... more | FREE shipping go to store |
 | CMMG Mk4 Resolute Upper Receiver Group .300 AAC Blackout 16.1in Armor Black 30B12BB-AB CMMG Mk4 Resolute Upper Receiver Group .300 AAC Blackout 16.1in Armor Black 30B12BB-AB. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute... ... more | FREE shipping go to store |
 | CMMG Mk4 Resolute Upper Receiver Group 6mm ARC 16.1in Armor Black 60B1091-AB CMMG Mk4 Resolute Upper Receiver Group 6mm ARC 16.1in Armor Black 60B1091-AB. Chambered this upper group is a staple for any collection and comes ready to pair with the AR15 lower group of your choice. Specifications for CMMG Mk4 Resolute Upper... ... more | FREE shipping go to store |
 | CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Coyote Tan 99BE6B6-CT CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Coyote Tan 99BE6B6-CT. We have you covered Utilizing our Radial Delayed Blowback operating system not only does this upper create one of the softest shooting 9mm PCCs with style that is unmistakably... ... more | FREE shipping go to store |
 | CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Midnight Bronze 99BE6B6-MB CMMG Mk4 9mm Resolute Upper Group Receiver 16.1in Midnight Bronze 99BE6B6-MB. We have you covered Utilizing our Radial Delayed Blowback operating system not only does this upper create one of the softest shooting 9mm PCCs with style that is... ... more | FREE shipping go to store |
 | CMMG Resolute Upper Receiver Group 9mm 16.1in Armor Black 99BE6B6-AB CMMG Resolute Upper Receiver Group 9mm 16.1in Armor Black 99BE6B6-AB. Combine this RESOLUTE Upper Group with either our Mk57 Lower or a standard AR15 lower group and CMMGs 5.7 AR Conversion Magazines and youll be ready to hit the range Specifications... ... more | FREE shipping go to store |
 | CMMG MkG Resolute Upper Receiver Group .45 ACP 16.1in Armor Black 45B85B3-AB CMMG MkG Resolute Upper Receiver Group .45 ACP 16.1in Armor Black 45B85B3-AB. 45 ACP has been the pistol caliber of choice for many shooters. For anyone looking to complete the ultimate pistol caliber carbine the RESOLUTE Upper Group chambered in .45... ... more | FREE shipping go to store |
 | CMMG Mk47 Banshee Upper Receiver Group 7.62x39mm 8in Armor Black 76BE8F0-AB CMMG Mk47 Banshee Upper Receiver Group 7.62x39mm 8in Armor Black 76BE8F0-AB. 62x39mm BANSHEE upper group is sure to be a blast. Combining elements of ARs and AKs the Mk47 is CMMGs midsize platform sitting between the AR25 Mk4 and AR10-size Mk3... ... more | FREE shipping go to store |
 | CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Tungsten 30B12BB-TNG CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Tungsten 30B12BB-TNG. Whether youre looking to swap your current AR15 upper to quickly switch to 300BLK or looking to top off a new build this 8 BANSHEE upper group is sure to satisfy anyone looking... ... more | FREE shipping go to store |
 | CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Tungsten 35B5FBC-TNG CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Tungsten 35B5FBC-TNG. 30-30 or .243 Win. Designed to work with any standard AR15 lower group this 350 Legend RESOLUTE Mk4 Upper Group is just what you need for your next build. Specifications... ... more | FREE shipping go to store |
 | CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Titanium 55BC7C3-TI CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Titanium 55BC7C3-TI. 5 this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 thats lightweight and perfectly sized to go anywhere. This... ... more | FREE shipping go to store |
 | CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Charcoal Green 30B12BB-CG CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Charcoal Green 30B12BB-CG. Whether youre looking to swap your current AR15 upper to quickly switch to 300BLK or looking to top off a new build this 8 BANSHEE upper group is sure to satisfy anyone... ... more | FREE shipping go to store |
 | CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Midnight Bronze 55BC7C3-MB CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Midnight Bronze 55BC7C3-MB. 5 this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 thats lightweight and perfectly sized to go... ... more | FREE shipping go to store |
 | CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Tungsten 60B1091-TNG CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Tungsten 60B1091-TNG. Harness the capability of 6mm in this uniquely designed RESOLUTE 16.1 upper. Specifications for CMMG Mk4 6mm ARC Resolute Upper Group Receiver: Manufacturer: CMMG Cartridge:... ... more | FREE shipping go to store |
 | CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Tungsten 55BC7C3-TNG CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Tungsten 55BC7C3-TNG. 5 this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 thats lightweight and perfectly sized to go anywhere. This... ... more | FREE shipping go to store |
 | CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Charcoal Green 64BCF88-CG CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Charcoal Green 64BCF88-CG. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on... ... more | FREE shipping go to store |
 | CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Midnight Bronze 64BCF88-MB CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Midnight Bronze 64BCF88-MB. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on... ... more | FREE shipping go to store |
 | CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Coyote Tan 60B1091-CT CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Coyote Tan 60B1091-CT. Harness the capability of 6mm in this uniquely designed RESOLUTE 16.1 upper. Specifications for CMMG Mk4 6mm ARC Resolute Upper Group Receiver: Manufacturer: CMMG Cartridge:... ... more | FREE shipping go to store |
 | CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Midnight Bronze 35B5FBC-MB CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Midnight Bronze 35B5FBC-MB. 30-30 or .243 Win. Designed to work with any standard AR15 lower group this 350 Legend RESOLUTE Mk4 Upper Group is just what you need for your next build.... ... more | FREE shipping go to store |
 | CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Sniper Grey 35B5FBC-SG CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Sniper Grey 35B5FBC-SG. 30-30 or .243 Win. Designed to work with any standard AR15 lower group this 350 Legend RESOLUTE Mk4 Upper Group is just what you need for your next build. Specifications... ... more | FREE shipping go to store |
 | CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Coyote Tan 30B12BB-CT CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Coyote Tan 30B12BB-CT. Whether youre looking to swap your current AR15 upper to quickly switch to 300BLK or looking to top off a new build this 8 BANSHEE upper group is sure to satisfy anyone... ... more | FREE shipping go to store |
 | CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Titanium 30B12BB-TI CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Titanium 30B12BB-TI. Whether youre looking to swap your current AR15 upper to quickly switch to 300BLK or looking to top off a new build this 8 BANSHEE upper group is sure to satisfy anyone looking... ... more | FREE shipping go to store |
 | CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Sniper Grey 55BC7C3-SG CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Sniper Grey 55BC7C3-SG. 5 this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 thats lightweight and perfectly sized to go anywhere.... ... more | FREE shipping go to store |
 | CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Charcoal Green 60B1091-CG CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Charcoal Green 60B1091-CG. Harness the capability of 6mm in this uniquely designed RESOLUTE 16.1 upper. Specifications for CMMG Mk4 6mm ARC Resolute Upper Group Receiver: Manufacturer: CMMG... ... more | FREE shipping go to store |
 | CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Sniper Grey 64BCF88-SG CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Sniper Grey 64BCF88-SG. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the... ... more | FREE shipping go to store |
 | CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Midnight Bronze 30B12BB-MB CMMG Mk4 .300BLK Resolute Upper Group Receiver 16.1in Midnight Bronze 30B12BB-MB. Whether youre looking to swap your current AR15 upper to quickly switch to 300BLK or looking to top off a new build this 8 BANSHEE upper group is sure to satisfy anyone... ... more | FREE shipping go to store |
 | CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Titanium 35B5FBC-TI CMMG Mk4 .350 Legend Resolute Upper Group Receiver 16.1in Titanium 35B5FBC-TI. 30-30 or .243 Win. Designed to work with any standard AR15 lower group this 350 Legend RESOLUTE Mk4 Upper Group is just what you need for your next build. Specifications for... ... more | FREE shipping go to store |
 | CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Tungsten 64BCF88-TNG CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Tungsten 64BCF88-TNG. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the... ... more | FREE shipping go to store |
 | CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Charcoal Green 55BC7C3-CG CMMG Mk4 5.56X45mm NATO Resolute Upper Group Receiver 16.1in Charcoal Green 55BC7C3-CG. 5 this is the shortest 5.56mm upper group CMMG offers. Great for anyone looking to build an ultra-compact AR15 thats lightweight and perfectly sized to go anywhere.... ... more | FREE shipping go to store |
 | CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Sniper Grey 60B1091-SG CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Sniper Grey 60B1091-SG. Harness the capability of 6mm in this uniquely designed RESOLUTE 16.1 upper. Specifications for CMMG Mk4 6mm ARC Resolute Upper Group Receiver: Manufacturer: CMMG Cartridge:... ... more | FREE shipping go to store |
 | CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Titanium 64BCF88-TI CMMG Mk4 6.5 Grendel Resolute Upper Group Receiver 16.1in Titanium 64BCF88-TI. 5 Grendel offers efficient ballistic performance native to many 6.5mm bullet designs. The upside here is that this RESOLUTE Mk4 Upper Group in 6.5 Grendel is built on the... ... more | FREE shipping go to store |
 | CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Titanium 60B1091-TI CMMG Mk4 6mm ARC Resolute Upper Group Receiver 16.1in Titanium 60B1091-TI. Harness the capability of 6mm in this uniquely designed RESOLUTE 16.1 upper. Specifications for CMMG Mk4 6mm ARC Resolute Upper Group Receiver: Manufacturer: CMMG Cartridge: 6mm... ... more | FREE shipping go to store |
 | CMMG MkGs .40S&W Resolute Upper Group Receiver 16.1in Midnight Bronze 40B9894-MB CMMG MkGs .40S&W Resolute Upper Group Receiver 16.1in Midnight Bronze 40B9894-MB. 40 S&W. This MkGs RESOLUTE Upper Group is designed to extract the full hard-hitting performance of .40 S&W in a package thats easy to shoot with style in a class of its... ... more | FREE shipping go to store |
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